This plot provides a comprehensive overview of demographic patterns and crime-related data. The top-left plot displays the distribution of arrests by age group, revealing that individuals aged 25-44 represent the highest proportion of arrests, followed by the 18-24 and 45-64 age groups. The pie chart at the top-right illustrates the gender distribution of arrests, with males accounting for a dominant 82.1% of all arrests, compared to 17.9% for females. The bottom-left plot focuses on the perpetrator’s race description, showing that Black individuals are most frequently arrested, followed by White Hispanics, Black Hispanics, and other racial categories. Finally, the bar chart on the bottom-right lists the top 15 offense categories, where Assault 3 & Related Offenses leads, followed by Petit Larceny and Felony Assault.
The demographic distribution chart offers a foundational understanding of the patterns observed in arrests. However, to delve deeper into the interplay between these demographic factors and their combined influence on arrest patterns, the alluvial flow chart offers a more dynamic and interconnected perspective. It allows us to visualize how different demographic categories, such as gender and race, flow into specific age groups, revealing hidden relationships within the data.
The majority of arrests are attributed to males, spanning across all racial and age categories. Among males, Black individuals dominate the arrest counts, with a significant portion falling into the 25-44 age group, followed by the 18-24 and 45-64 age group. A similar pattern is seen among females, though their overall arrest counts are much lower. Black females also primarily fall into the 25-44 age group, with much smaller flows to younger and older age groups. White Hispanics and Black Hispanics, the next most frequently arrested groups, also exhibit similar age distributions, with the majority concentrated in the 25-44 age group. Asian/Pacific Islander and White individuals have smaller flows overall, but their arrests also primarily converge in the 25-44 age group. Arrests of individuals under 18 and over 65 are comparatively rare across all racial groups, indicating that crime-related activities are predominantly associated with working-age individuals.
Having explored the demographic patterns and their interactions through the alluvial chart, we now turn our attention to investigate further about the relationship between the borough and offence level and race.
The mosaic plot reveals that while offense levels show consistent patterns across all boroughs - approximately half of the arrests are for felonies, nearly half are for misdemeanors, and violations constitute only a small proportion - there are striking disparities in the racial composition of arrests across boroughs. Black individuals dominate arrests in most boroughs, particularly in the Bronx and Brooklyn, where their proportions are significantly higher compared to other racial groups. In contrast, White individuals are more frequently arrested in Brooklyn than in the Bronx, showcasing geographical variations in racial arrest patterns. Similarly, White Hispanic and Black Hispanic individuals also show varied distributions across boroughs, with noticeable representation in Brooklyn and Manhattan. Staten Island consistently exhibits the smallest volume of arrests, reflecting its lower population density and distinct enforcement practices.
For the next section, we aim to find out the overall geographical patterns.